Do-it-yourself pvc boat seam repair

I did not keep track of the pressure in the cylinders, as a result, one seam in the bow compartment parted. Approximately 5-7 cm. Having hastily smeared with ordinary pvc glue, with an etching seam, I got to the house. Now you need to tear off the gap again, remove fresh glue and restore the tightness of the compartment. There is a cloud of information about patching pvc, but I didn’t find anything worthwhile about repairing seams. Does anyone have any information or personal experience?

Nobody faced such problems and did not solve them?

> Nobody faced such problems and did not solve them?

Here it is quite intelligible (though about a patch, but the algorithm is the same):
Link.

After tearing off the old patch, we pick out dead cockroaches, old “bulls”, pieces of fishing line, rusty hooks, stones and other grains of sand from the remnants of the glue, and wipe it with a clean cloth soaked in the 646th solvent. Everything, the surface is ready. The remains of the glue should not be embarrassing, because they will not interfere.
Then we apply a patch prepared (treated with the same solvent) in advance, which in area will be equal (maybe a little more) to the area of ​​\u200b\u200bthe old glue, circle with a pencil / pen / marker / etc.
We apply the first layer of glue. We step aside and smoke. You can smoke safely up to half an hour.
We apply the second layer. We smoke again. And also on the sidelines. Minutes through. we check: if the finger is still sticky, open the second pack of cigarettes, if not, turn on the hair dryer, heat both the patch and the place of the sticker without fanaticism. It is easy to control - if the glue starts to bubble with tiny bubbles, then enough is enough. We apply the patch, trying not to confuse our boat with the neighbor's boat, and with all the dope we press / roll the patch. Such as Sanych, AlexV, DimaM can be half a fool. Intern from all over. At the same time, you can warm it up a little with a hair dryer. But, again, without fanaticism.
We leave until tomorrow.
If tomorrow, after inflating the boat, it will poison again, then either buy a new boat, or tear off the hands of the repairer.

Video (click to play).

To avoid misunderstandings from readers and bad readers: all of the above is purely my opinion. And if someone takes this as advice, it will be his problem ☺

Oh, I forgot, first you need to tear off what poisons.
Here, from there:

With an industrial hairdryer, carefully, without fanaticism, warm up and the old patch will come off.
The standard method for repairing PVC boats.
In the same way, the entire hitch is removed (rings, patches, handles, etc.)

I glued the balloon on an air cushion.
Glue Moment Polyurethane Transparent.
The technology is described above.
There are adhesives with a heat stabilizer (it is also rumored to be a “hardener”).
Such, if you stick it, then you’ll tear off the hell, peel it off, even with a hairdryer, that is, “to death”.

Yes!
Not 646th, but acetone!
And do not “degrease”, but GROUND!
Rub with a rag with acetone until a “haze” appears on the PVC material.
And do not touch with your hands, rub the “rubbed”.

Repair PVC inflatable boat, in most cases not that hard. Such repairs can be done both at home and in field conditions. How to find a cut or puncture site? How to repair cuts, burns and punctures? What glue to use? What tools and materials will be needed? More about this in the proposed article.

For reliable and high-quality gluing of PVC products, it is necessary to add a stabilizing additive "Desmodur" or "Polyisocyanate (PIC) grade B" to the adhesive. The proportion is 95-98% glue and 2-5% additive.

Before starting repairs, clean and dry the damaged area. The site of injury and a small area around it must be cleaned with fine sandpaper and degreased. Then it is necessary to carefully straighten the repaired area by placing a board, a piece of plywood or some other flat surface under it. After that, you need to mark the location and orientation of the future patch with a pen or marker.

To repair small punctures (burns) in PVC, a patch should be cut, the diameter of which would exceed the dimensions of the puncture by 2-3 centimeters. The shape of the patch can be round or oval, without corners.

Large punctures are repaired in the same way as in the previous case, but you need two payments. For the best result of repairing such a damage, after the glue has completely dried, another patch 2-3 cm larger than the first can be glued onto the outer patch.

Repair of bottom cuts, torn holes is carried out in exactly the same way as in the first two cases. The only difference is that patches are placed both from the outside and from the inside of the damage, and the damage itself before patching should be sew with harsh threads.

1. On the degreased surfaces of the damaged area and patches, apply glue evenly and in one or two minutes evenly and firmly press the patch to the damaged area. This repair method does not give the best result, but is suitable for repairs in suitable conditions. It is advisable to repair the damage again at the end of the trip, using method 2 or 3.
2. Apply a layer of adhesive to the surfaces to be bonded and leave for ten to fifteen minutes. Then apply another layer of glue on both surfaces. Allow the glue to dry so that it sticks slightly to the fingers. After that, evenly placing the patch at the site of damage, roll carefully, with a smooth knife handle, or other object with rounded shapes, removing all air bubbles and gluing irregularities.
3. As in the second method, apply two layers of glue to the surfaces to be glued. Give the glue time to dry completely. Then either put the patch on the damage site and warm it up with a building hair dryer (the surface should not be overheated, it should be warm, but not hot), or heat the damage site first, then the patch, and after that, firmly press the patch to the damage site. In both cases, it is necessary to carefully and strongly roll the surfaces to be glued with a roller. This method gives the most reliable repair result.

The video below shows how to properly patch the keel of a PVC inflatable boat. How to degrease surfaces, cut out a patch, mark the place of gluing, glue, heat and roll the connection.

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Message Alexander » Mar 03, 2017, 02:38 #1

Message Miroha » Mar 03, 2017, 17:17 #2

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Message Alexander » Mar 03, 2017, 06:40 pm #4

Many anglers are interested in how to glue a PVC boat at home, because taking it to the service is a bit expensive, and there seems to be nothing complicated in the repair process. It really is.

Before you start sealing the damage, you need to pay attention to the fact that glue like “Seconds” or “Moment” is not at all suitable for this purpose. These compounds are not designed for such work and will not provide the strength that is needed - the patch will quickly peel off. But the problem is that it is rather problematic to clean such glue from the surface of the boat, so you will most likely have to put a new patch on the surface that is smeared with Moment. And this does not add reliability and quality.

Therefore, to repair damage on the boat, you should use the glue that comes in the repair kit or similar adhesives.It should only be taken into account that the "Uranus" included in the set becomes soft in warm weather and the patch can peel off.

There is nothing difficult in the process of sealing a boat at home. You just need to follow some generally accepted guidelines. And so, we decided that we would not write much, so here is a detailed step-by-step instruction on how to seal PVC boats at home.

1. Before proceeding with the repair, the boat must be dried, cleaned of dirt around the cut / puncture and laid out on a flat surface. Some advise to clean the place of gluing with sandpaper, but you should not do this - this will damage the coating and material of the boat and reduce its wear resistance.

2. Degrease the cleaned surface around the damage. It is best to use a solvent for this purpose. If it is not at hand, then acetone or alcohol will do.

3. Cut out a patch a few centimeters larger than the hole. It is better to use the material for the patch from the repair kit, or find a similar one. If there is any doubt, then it is better to degrease the patch.

4. If this is a cut on the bottom of the boat, then it should be carefully sewn up with harsh threads.

5. Apply the patch to the damage in the way it is planned to be fixed and trace with a pencil to outline its boundaries on the boat.

6. Now we take the glue, best of all on a flat small brush and coat the patch and the boat with it, inside the circled contour.

7. We are waiting for about 15 minutes for the glue to begin to harden and apply a new portion of the adhesive on both surfaces.

8. After about five minutes, the places where the glue was applied must be heated with a hair dryer. You should be careful to warm it up and not dry it out.

9. Now we glue the patch for damage, making sure that the surfaces with the glue applied coincide and gently iron with some hard object to press well and get rid of air bubbles that could get between the glued surfaces.

10. In the event that the cut is larger than five centimeters, two patches should be applied. One inside, the second outside according to the above method. And for greater strength and tightness, you can put two patches on top - the first is a couple of centimeters larger than the damage, the second is several centimeters larger than the first patch.

11. Carefully, so as not to bend the place of gluing, we send the boat to dry for a day, and preferably two.

There are times when the damage is only a scratch on the top layer of the boat, without any significant damage. You can simply fill it with glue from the repair kit, this will be enough. But you can, for greater reliability, put a small patch. This is of course if you are very worried about your favorite boat.

There are situations when the damage is significant and it is quite difficult to connect exactly the edges of the gap (cut) of the material before gluing. Therefore it is recommended:

• the damaged area is washed and dried;
• laid out on a flat surface and degreased;
• before gluing the damaged edges, it is better to sew them together, and only then proceed to the main gluing stage.

With this elimination of extensive cuts and gaps, it is desirable to install two patches at once. This is a more complex repair, but one can do it alone. One of the patches is glued on the inside, and the other on the outside of the damage. To make it easier to stick the patch inside the boat, you can use a special hook.

Having completely unscrewed the valve, glue the first patch through the hole using a hook. It is always glued inside the boat, and then only the outer patch is glued. After the repair is completed, it is necessary to make sure that inside the walls of the cylinder they are not glued together due to the ingress of glue on them. If, nevertheless, such a nuisance has occurred, then gently immediately pull the balloon by opposite sides.

To eliminate the gnaw of the boat on top of the outer patch, it is better to additionally glue a larger patch. It turns out that two patches will be glued on the outside at the site of damage. But there is no need to rush to glue the second one. Only after the glue has dried well on the previous patches, you can glue the third one.

Damage to the bottom is quite specific. Their main culprits are snags in water bodies, large tree branches, and bars from reinforcement. Such cuts are ragged and have a complex configuration. When repairing them, you should also put an internal and external patch. And for precise connection of damaged edges, threads can be used for stitching. The very procedure for carrying out the work is the same as for the repair of ordinary punctures.

After drying and degreasing the seam of the boat and the place around it on both sides, a patch is cut out with a size slightly larger than the length of the damaged seam. A thin layer of glue is applied to the patch. Then it is glued and immediately rolled with a roller. Excess glue that has come out can be removed with a cloth moistened with solvent. After the glue dries on the first patch, another one is cut out. Its dimensions are larger than the first, taking into account that it is possible to make a bend on the reverse side. After gluing it, you also need to roll the damaged area.

When the repair of the seam is completed, in order to check the quality of work, the boat must be inflated. Using a soapy solution, treat the repair site with it and check the air outlet. If everything is fine and the soap solution does not poison, then after 24 hours the boat can be used for fishing.